TCRT5000The infrared emission diode of the sensor continuously emits infrared rays. When the emitted infrared rays are not reflected back or are reflected back but the intensity is not large enough, the infrared receiver tube is always in the off state, and the output of the module is low, indicating that the diode Has been in the extinguished state; detected objects appear within the detection range, the infrared is reflected back and the intensity is large enough, infrared receiver tube saturation, then the output of the module is high, indicating that the diode is lit.

Wiring:
1, VCC: connected to the power supply positive (5V)
2, GND: Connect the power supply negative
3, OUT: high / low level switch signal

Applications : 

•  Power meter pulse data sampling
• Fax machine shredder paper detection
• Obstacle detection
•  Black and white line detection

Specifications : 

• Using TCRT5000 infrared reflection sensor
• Detection of reflection distance: 1mm ~ 25mm applicable
• Operating voltage: 5V
• Output form: digital signals (0 and 1)
• With a fixed bolt hole, easy to install
• Small board PCB size: 3.5cm x 1cm
• single weight: 4.5g